Extensible rod



March 23 1926.

W. J. WOERNER EXTENSIBLE ROD Filed Nov. 17, 1925 INVENTOR film ATTORNEYSPatented Mar. 23, 192 5.

WILLIAM J. WQERNER, OF ROCHESTER, NEW YQRK.

EXTENSIIBLE ROD.

Application filed November To all w/zom it may concern:

Be it known that I, VVILLIAM J. lVOiiiiNER, a citizen of the UnitedStates, and resident of Rochester, in the county of Monroe and State ofNew York, have invented certain new and useful Improvements inExtensible Rods, of which the following is a specification.

The present invention relates to extensible rods and an object thereofis to pro vide a rod in which the parts are so connected that theytelescope with a minimum amount of friction between them. A furtherobject of the invention is to provide a novel means for guiding the rodparts against turning movement relatively to-each other.

To these and other ends, the invention consists of certain parts andcombinations of parts, all of which will be hereinafter de scribed: thenovel featuresbeing pointed out in the appended claims.

In the drawings:

Fig. 1 is a perspective view of the rod employed in connection with acandle shut ter and lighter;

Fig. 2 is a fragmentary longitudinal section through the rod;

I Fig. 3 is a section on the line 3-3, Fig. 2; and

Fig. 4 is a sect-ion on the line e e, Fig. 2.

Referring more particularly to the em bodiment of the inventionillustrated in the drawings, 1 indicates a candle snufler secured to acurved end 2 of a rod section 3 which also carries a slotted guide a fora lighting taper controlled through a slide 5 in the ordinary manner.The rod 3 is a tubular construction and is formed with a longitudinallyextending groove 6 in a portion of which the slotted tube 4 lies. Thisgroove is formed by pressing the sheet metal of the hollow tube inwardlyso that an interior longitudinally extending rib 7 is formed. In the endof the tube is tightly fitted a block 8 through a drive lit orv bybrazing, and this block 8 has a screw threaded opening 9. The block isgrooved in one side to receive the rib 7 so as to prevent theturning ofsuch block in the tube. A combination guide 01' stop 10 is also fittedin the end of the tube 3 and has a flange 11 at its outer end abuttingthe end of the tube 3 and pro jecting beyond the latter to form ashoulder or abutment 12. This flange 11 is also provided with a notch orgroove 13. A screw 1'7, 1925. Serial No. $9,720.

14: passes through the combined guide and stop and into the anchoringblock 8 to hold the combined guide and stop into position on the tube 3.

The tube 3 operates within an intermediate tube 15 which is alsoprovided with a longitudinally extending groove indicated at 16 formedby pressing the sheet metal inwardly to provide an internal rib 17. Asleeve 18 is fitted within the outer end of the tube 15 and is providedwith a groove 19 formed by pressing the metal of the sleeve inwardly sothat a rib v2O is provided. The groove 19 of the sleeve 1.8 receives therib 17 of the tube 15 while the rib 20 of the sleeve 18 projects intothe groove 6 of the tube 3, so as to guide the tube 3 at the outer endof the tube 15 the sleeve 18 being brazed or rigidly secured to the tube15 and being held against turning through its rib and groove connectionwith the tube 15. 'A collar 21 fits rigidly about the outer end of thetube 15 and carries a set screw 22 which passes through the tube 15 andthe sleeve 18, so

as to engage with the bottom of the groove 6 in the sleeve 3. This setscrew holds the tube 3 in its adjusted relation on the tube 15 and as itenters the groove tends to not only prevent relative turning between thetube 3 and the tube 13, but also prevents the marring of the outer faceof the tube 3. The groove 13 of the combined stop and guide 11 receivesthe rib 17 of the tube 15 and prevents the turning of the inner end ofthe tube 3, Wllllt: the flange 11 by cooperating with the interior wallsof the tube 1-5 acts as a guide for the inner end of the Y tube 3. Thisflange also through its abut- This sleeve 23 also acts as a guide forthe inner end of the tube 15 when the latter telescopes within a tube 25to which the handle 26 is secured.

The tube 25 has at its outer end an internal sleeve 27 which is pressedinwardly in the direction its axis to provide a rib 28 operating in thelongitudinally extending groove 16 of the tube 15 to guide the latter atthe outer end of the tube 22'. This sleeve acts as a stop for engagementwith the shoulder Q-t on the sleeve 23 to limit he outward movement ofthe tube 15. Secured externally about the free end of the lube is acollar 28 which carries a set screw 29 that passes through the sleeve 27for engagement with the bottom of the groove in so as to act to preventthe turning of the groove and to engage the tube '15 at a place where itwill not mar the main surface of the latter.

From the foregoing it will be seen that there has been provided anextensible rod in which one red member slides with an other and has twopoint bearing within. the latter one at the outer end through a sleeveand: at the other end through a combined stop and guide member, wherebythe friction between the two rod members is reduced to a minimum, and atthe same time the two red members are held against separation. Thecombined guide. and stop member is in one instance removably secured toits rod member so that the rod member may be readily disconnected fromthe other rod nien'iber. The rod members are so connected that relativeturning between them is pre vented while a free longitudinal movement 'spermitted. Means is provided for looking the rod member against relativemovement and this means is so arranged that it does not mar the rodmembers which operate in grooves therein also serving the purpose ofpreventing relative movement between the rod members.

What I claim as my invention and desire to secure by Letters Patent is:

1. An extensible rod comprising two members, one of which is tubular andhas the other sliding therein, a sleeve fitted in one end of saidtubular member and formed with a rib on its inner side, the other memberhaving a longitudinally extending groove receiving the internal rib otthe sleeve, and a combined guide and stop member arranged a the innerend of the other member of the rod and cooperating with the interiortaco ot the tubular member to guide the inner end of said other memberof the rod and also cooperating with the sleeve to limit the movement oisaid other member in one direction in the tubular member.

An extensible rod comprising a tubular member termed with alongitudinally extending internal rib, a sleeve fitting in one end ofsaid tubular member and formed with an internal rib, a rod membermovable in said sleeve and formed with a longitudinally extendingexternal groove, and a combined guide and stop member arranged. at

the inner end of said second nanicd stop member and Formed with a. notchguided in the internal rib of said tubular member and cooperating withsaid sleeve to limit the outward movement ot said second mentioned rodmember.

3. An extensible rod comprising a tubular member, a collar fitted aboutthe end of said tubular member, a sleeve titted within said end of saidtubularmember and formed. with an internal rib, a rib member guided insaid sleeve and formed with a longitndinal ly extending groove in whichthe internal. rib of the sleeve operates, a combined guide and stopn'iember fitted on the inner end of said second mentioned rib member tocooperate with the sleeve to limit the outward movement of said rodmember and to cooperate with the internal. face of the tubular member toguide the inner end of said second mentioned rod member, a set screwpassing through the tubular rod and the sleeve to engage in theli'mgitudinally e tending groove of the second mentioned rod member.

4-. An extensible rod comprising a tubular member formed with alongitinlinally extending internal rib, a sleeve lit-ted in the end ofsaid tubular member and formed with an internal rib, a tubular membersliding in said sleeve and formed with a longitudinally extendingexternal groove and a longitudinally extending internal rib, a blocklitte'l within the inner end of said second mentioned tubular member andformed with a screw threaded opening, a combined guide and stop memberfitted within said second mentioned tubular member and formed with a dene projecting beyond the edges of said tubular member, said flange beingnotched to receive the internal longitudinally extending rib of thefirst mentioned tubular member and arranged to cooperate with the end ofthe internal sleeve of the first mentioned tubular member to limit theout ard moven'ient of the second mentioned tubular member, and a boltpassing through said combined guide and stop member and anchored in thescrew threaded opening of said block.

5. An extensible rod comprising a tubular member, a sleeve at the innerend of said tubular member acting as a. stop, a second rod member guidedin said sleeve, and a combined guide and stop member removably securedto the inner end of said second mentioned rod member, guided on theinterior walls oi? the first mentioned. rod member and ci'ioperatingwith the internal. sleeve of said first mentioned rod member.

WILLIAM J. \VOlfliiliiGlt.

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